December 2024 - Linux-stable-mirror

FAILED: patch "[PATCH] drm/dp_mst: Fix resetting msg rx state after topology removal" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x a6fa67d26de385c3c7a23c1e109a0e23bfda4ec7 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121006-ivy-curvy-63a6@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a6fa67d26de385c3c7a23c1e109a0e23bfda4ec7 Mon Sep 17 00:00:00 2001 From: Imre Deak <imre.deak(a)intel.com> Date: Tue, 3 Dec 2024 18:02:17 +0200 Subject: [PATCH] drm/dp_mst: Fix resetting msg rx state after topology removal If the MST topology is removed during the reception of an MST down reply or MST up request sideband message, the drm_dp_mst_topology_mgr::up_req_recv/down_rep_recv states could be reset from one thread via drm_dp_mst_topology_mgr_set_mst(false), racing with the reading/parsing of the message from another thread via drm_dp_mst_handle_down_rep() or drm_dp_mst_handle_up_req(). The race is possible since the reader/parser doesn't hold any lock while accessing the reception state. This in turn can lead to a memory corruption in the reader/parser as described by commit bd2fccac61b4 ("drm/dp_mst: Fix MST sideband message body length check"). Fix the above by resetting the message reception state if needed before reading/parsing a message. Another solution would be to hold the drm_dp_mst_topology_mgr::lock for the whole duration of the message reception/parsing in drm_dp_mst_handle_down_rep() and drm_dp_mst_handle_up_req(), however this would require a bigger change. Since the fix is also needed for stable, opting for the simpler solution in this patch. Cc: Lyude Paul <lyude(a)redhat.com> Cc: <stable(a)vger.kernel.org> Fixes: 1d082618bbf3 ("drm/display/dp_mst: Fix down/up message handling after sink disconnect") Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13056 Reviewed-by: Lyude Paul <lyude(a)redhat.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-2-imre… diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c index e6ee180815b2..1475aa95ab6b 100644 --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c @@ -3700,8 +3700,7 @@ int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool ms ret = 0; mgr->payload_id_table_cleared = false; - memset(&mgr->down_rep_recv, 0, sizeof(mgr->down_rep_recv)); - memset(&mgr->up_req_recv, 0, sizeof(mgr->up_req_recv)); + mgr->reset_rx_state = true; } out_unlock: @@ -3859,6 +3858,11 @@ int drm_dp_mst_topology_mgr_resume(struct drm_dp_mst_topology_mgr *mgr, } EXPORT_SYMBOL(drm_dp_mst_topology_mgr_resume); +static void reset_msg_rx_state(struct drm_dp_sideband_msg_rx *msg) +{ + memset(msg, 0, sizeof(*msg)); +} + static bool drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up, struct drm_dp_mst_branch **mstb) @@ -4141,6 +4145,17 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr) return 0; } +static void update_msg_rx_state(struct drm_dp_mst_topology_mgr *mgr) +{ + mutex_lock(&mgr->lock); + if (mgr->reset_rx_state) { + mgr->reset_rx_state = false; + reset_msg_rx_state(&mgr->down_rep_recv); + reset_msg_rx_state(&mgr->up_req_recv); + } + mutex_unlock(&mgr->lock); +} + /** * drm_dp_mst_hpd_irq_handle_event() - MST hotplug IRQ handle MST event * @mgr: manager to notify irq for. @@ -4175,6 +4190,8 @@ int drm_dp_mst_hpd_irq_handle_event(struct drm_dp_mst_topology_mgr *mgr, const u *handled = true; } + update_msg_rx_state(mgr); + if (esi[1] & DP_DOWN_REP_MSG_RDY) { ret = drm_dp_mst_handle_down_rep(mgr); *handled = true; diff --git a/include/drm/display/drm_dp_mst_helper.h b/include/drm/display/drm_dp_mst_helper.h index f6a1cbb0f600..a80ba457a858 100644 --- a/include/drm/display/drm_dp_mst_helper.h +++ b/include/drm/display/drm_dp_mst_helper.h @@ -699,6 +699,13 @@ struct drm_dp_mst_topology_mgr { */ bool payload_id_table_cleared : 1; + /** + * @reset_rx_state: The down request's reply and up request message + * receiver state must be reset, after the topology manager got + * removed. Protected by @lock. + */ + bool reset_rx_state : 1; + /** * @payload_count: The number of currently active payloads in hardware. This value is only * intended to be used internally by MST helpers for payload tracking, and is only safe to

6 months, 2 weeks

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FAILED: patch "[PATCH] drm/xe: Move the coredump registration to the worker thread" failed to apply to 6.12-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.12-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y git checkout FETCH_HEAD git cherry-pick -x 5dce85fecb87751ec94526e1ac516dd7871e2e0c # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121009-unusable-patronage-0895@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 5dce85fecb87751ec94526e1ac516dd7871e2e0c Mon Sep 17 00:00:00 2001 From: John Harrison <John.C.Harrison(a)Intel.com> Date: Thu, 28 Nov 2024 13:08:23 -0800 Subject: [PATCH] drm/xe: Move the coredump registration to the worker thread MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adding lockdep checking to the coredump code showed that there was an existing violation. The dev_coredumpm_timeout() call is used to register the dump with the base coredump subsystem. However, that makes multiple memory allocations, only some of which use the GFP_ flags passed in. So that also needs to be deferred to the worker function where it is safe to allocate with arbitrary flags. In order to not add protoypes for the callback functions, moving the _timeout call also means moving the worker thread function to later in the file. v2: Rebased after other changes to the worker function. Fixes: e799485044cb ("drm/xe: Introduce the dev_coredump infrastructure.") Cc: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> Cc: Matthew Brost <matthew.brost(a)intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Cc: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: Francois Dugast <francois.dugast(a)intel.com> Cc: Rodrigo Vivi <rodrigo.vivi(a)intel.com> Cc: Lucas De Marchi <lucas.demarchi(a)intel.com> Cc: "Thomas Hellström" <thomas.hellstrom(a)linux.intel.com> Cc: Sumit Semwal <sumit.semwal(a)linaro.org> Cc: "Christian König" <christian.koenig(a)amd.com> Cc: intel-xe(a)lists.freedesktop.org Cc: linux-media(a)vger.kernel.org Cc: dri-devel(a)lists.freedesktop.org Cc: linaro-mm-sig(a)lists.linaro.org Cc: <stable(a)vger.kernel.org> # v6.8+ Signed-off-by: John Harrison <John.C.Harrison(a)Intel.com> Reviewed-by: Matthew Brost <matthew.brost(a)intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241128210824.3302147-3-John… (cherry picked from commit 90f51a7f4ec1004fc4ddfbc6d1f1068d85ef4771) Signed-off-by: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> diff --git a/drivers/gpu/drm/xe/xe_devcoredump.c b/drivers/gpu/drm/xe/xe_devcoredump.c index 0b0cd6aa1d9f..f8947e7e917e 100644 --- a/drivers/gpu/drm/xe/xe_devcoredump.c +++ b/drivers/gpu/drm/xe/xe_devcoredump.c @@ -155,36 +155,6 @@ static void xe_devcoredump_snapshot_free(struct xe_devcoredump_snapshot *ss) ss->vm = NULL; } -static void xe_devcoredump_deferred_snap_work(struct work_struct *work) -{ - struct xe_devcoredump_snapshot *ss = container_of(work, typeof(*ss), work); - struct xe_devcoredump *coredump = container_of(ss, typeof(*coredump), snapshot); - struct xe_device *xe = coredump_to_xe(coredump); - unsigned int fw_ref; - - xe_pm_runtime_get(xe); - - /* keep going if fw fails as we still want to save the memory and SW data */ - fw_ref = xe_force_wake_get(gt_to_fw(ss->gt), XE_FORCEWAKE_ALL); - if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) - xe_gt_info(ss->gt, "failed to get forcewake for coredump capture\n"); - xe_vm_snapshot_capture_delayed(ss->vm); - xe_guc_exec_queue_snapshot_capture_delayed(ss->ge); - xe_force_wake_put(gt_to_fw(ss->gt), fw_ref); - - xe_pm_runtime_put(xe); - - /* Calculate devcoredump size */ - ss->read.size = __xe_devcoredump_read(NULL, INT_MAX, coredump); - - ss->read.buffer = kvmalloc(ss->read.size, GFP_USER); - if (!ss->read.buffer) - return; - - __xe_devcoredump_read(ss->read.buffer, ss->read.size, coredump); - xe_devcoredump_snapshot_free(ss); -} - static ssize_t xe_devcoredump_read(char *buffer, loff_t offset, size_t count, void *data, size_t datalen) { @@ -234,6 +204,45 @@ static void xe_devcoredump_free(void *data) "Xe device coredump has been deleted.\n"); } +static void xe_devcoredump_deferred_snap_work(struct work_struct *work) +{ + struct xe_devcoredump_snapshot *ss = container_of(work, typeof(*ss), work); + struct xe_devcoredump *coredump = container_of(ss, typeof(*coredump), snapshot); + struct xe_device *xe = coredump_to_xe(coredump); + unsigned int fw_ref; + + /* + * NB: Despite passing a GFP_ flags parameter here, more allocations are done + * internally using GFP_KERNEL expliictly. Hence this call must be in the worker + * thread and not in the initial capture call. + */ + dev_coredumpm_timeout(gt_to_xe(ss->gt)->drm.dev, THIS_MODULE, coredump, 0, GFP_KERNEL, + xe_devcoredump_read, xe_devcoredump_free, + XE_COREDUMP_TIMEOUT_JIFFIES); + + xe_pm_runtime_get(xe); + + /* keep going if fw fails as we still want to save the memory and SW data */ + fw_ref = xe_force_wake_get(gt_to_fw(ss->gt), XE_FORCEWAKE_ALL); + if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) + xe_gt_info(ss->gt, "failed to get forcewake for coredump capture\n"); + xe_vm_snapshot_capture_delayed(ss->vm); + xe_guc_exec_queue_snapshot_capture_delayed(ss->ge); + xe_force_wake_put(gt_to_fw(ss->gt), fw_ref); + + xe_pm_runtime_put(xe); + + /* Calculate devcoredump size */ + ss->read.size = __xe_devcoredump_read(NULL, INT_MAX, coredump); + + ss->read.buffer = kvmalloc(ss->read.size, GFP_USER); + if (!ss->read.buffer) + return; + + __xe_devcoredump_read(ss->read.buffer, ss->read.size, coredump); + xe_devcoredump_snapshot_free(ss); +} + static void devcoredump_snapshot(struct xe_devcoredump *coredump, struct xe_sched_job *job) { @@ -310,10 +319,6 @@ void xe_devcoredump(struct xe_sched_job *job) drm_info(&xe->drm, "Xe device coredump has been created\n"); drm_info(&xe->drm, "Check your /sys/class/drm/card%d/device/devcoredump/data\n", xe->drm.primary->index); - - dev_coredumpm_timeout(xe->drm.dev, THIS_MODULE, coredump, 0, GFP_KERNEL, - xe_devcoredump_read, xe_devcoredump_free, - XE_COREDUMP_TIMEOUT_JIFFIES); } static void xe_driver_devcoredump_fini(void *arg)

6 months, 2 weeks

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FAILED: patch "[PATCH] x86/cacheinfo: Delete global num_cache_leaves" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 9677be09e5e4fbe48aeccb06ae3063c5eba331c3 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121035-bruising-embody-acc8@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 9677be09e5e4fbe48aeccb06ae3063c5eba331c3 Mon Sep 17 00:00:00 2001 From: Ricardo Neri <ricardo.neri-calderon(a)linux.intel.com> Date: Wed, 27 Nov 2024 16:22:47 -0800 Subject: [PATCH] x86/cacheinfo: Delete global num_cache_leaves Linux remembers cpu_cachinfo::num_leaves per CPU, but x86 initializes all CPUs from the same global "num_cache_leaves". This is erroneous on systems such as Meteor Lake, where each CPU has a distinct num_leaves value. Delete the global "num_cache_leaves" and initialize num_leaves on each CPU. init_cache_level() no longer needs to set num_leaves. Also, it never had to set num_levels as it is unnecessary in x86. Keep checking for zero cache leaves. Such condition indicates a bug. [ bp: Cleanup. ] Signed-off-by: Ricardo Neri <ricardo.neri-calderon(a)linux.intel.com> Signed-off-by: Borislav Petkov (AMD) <bp(a)alien8.de> Cc: stable(a)vger.kernel.org # 6.3+ Link: https://lore.kernel.org/r/20241128002247.26726-3-ricardo.neri-calderon@linu… diff --git a/arch/x86/kernel/cpu/cacheinfo.c b/arch/x86/kernel/cpu/cacheinfo.c index 392d09c936d6..e6fa03ed9172 100644 --- a/arch/x86/kernel/cpu/cacheinfo.c +++ b/arch/x86/kernel/cpu/cacheinfo.c @@ -178,8 +178,6 @@ struct _cpuid4_info_regs { struct amd_northbridge *nb; }; -static unsigned short num_cache_leaves; - /* AMD doesn't have CPUID4. Emulate it here to report the same information to the user. This makes some assumptions about the machine: L2 not shared, no SMT etc. that is currently true on AMD CPUs. @@ -717,20 +715,23 @@ void cacheinfo_hygon_init_llc_id(struct cpuinfo_x86 *c) void init_amd_cacheinfo(struct cpuinfo_x86 *c) { + struct cpu_cacheinfo *ci = get_cpu_cacheinfo(c->cpu_index); if (boot_cpu_has(X86_FEATURE_TOPOEXT)) { - num_cache_leaves = find_num_cache_leaves(c); + ci->num_leaves = find_num_cache_leaves(c); } else if (c->extended_cpuid_level >= 0x80000006) { if (cpuid_edx(0x80000006) & 0xf000) - num_cache_leaves = 4; + ci->num_leaves = 4; else - num_cache_leaves = 3; + ci->num_leaves = 3; } } void init_hygon_cacheinfo(struct cpuinfo_x86 *c) { - num_cache_leaves = find_num_cache_leaves(c); + struct cpu_cacheinfo *ci = get_cpu_cacheinfo(c->cpu_index); + + ci->num_leaves = find_num_cache_leaves(c); } void init_intel_cacheinfo(struct cpuinfo_x86 *c) @@ -740,21 +741,21 @@ void init_intel_cacheinfo(struct cpuinfo_x86 *c) unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */ unsigned int new_l2 = 0, new_l3 = 0, i; /* Cache sizes from cpuid(4) */ unsigned int l2_id = 0, l3_id = 0, num_threads_sharing, index_msb; + struct cpu_cacheinfo *ci = get_cpu_cacheinfo(c->cpu_index); if (c->cpuid_level > 3) { - static int is_initialized; - - if (is_initialized == 0) { - /* Init num_cache_leaves from boot CPU */ - num_cache_leaves = find_num_cache_leaves(c); - is_initialized++; - } + /* + * There should be at least one leaf. A non-zero value means + * that the number of leaves has been initialized. + */ + if (!ci->num_leaves) + ci->num_leaves = find_num_cache_leaves(c); /* * Whenever possible use cpuid(4), deterministic cache * parameters cpuid leaf to find the cache details */ - for (i = 0; i < num_cache_leaves; i++) { + for (i = 0; i < ci->num_leaves; i++) { struct _cpuid4_info_regs this_leaf = {}; int retval; @@ -790,14 +791,14 @@ void init_intel_cacheinfo(struct cpuinfo_x86 *c) * Don't use cpuid2 if cpuid4 is supported. For P4, we use cpuid2 for * trace cache */ - if ((num_cache_leaves == 0 || c->x86 == 15) && c->cpuid_level > 1) { + if ((!ci->num_leaves || c->x86 == 15) && c->cpuid_level > 1) { /* supports eax=2 call */ int j, n; unsigned int regs[4]; unsigned char *dp = (unsigned char *)regs; int only_trace = 0; - if (num_cache_leaves != 0 && c->x86 == 15) + if (ci->num_leaves && c->x86 == 15) only_trace = 1; /* Number of times to iterate */ @@ -991,14 +992,12 @@ static void ci_leaf_init(struct cacheinfo *this_leaf, int init_cache_level(unsigned int cpu) { - struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); + struct cpu_cacheinfo *ci = get_cpu_cacheinfo(cpu); - if (!num_cache_leaves) + /* There should be at least one leaf. */ + if (!ci->num_leaves) return -ENOENT; - if (!this_cpu_ci) - return -EINVAL; - this_cpu_ci->num_levels = 3; - this_cpu_ci->num_leaves = num_cache_leaves; + return 0; }

6 months, 2 weeks

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FAILED: patch "[PATCH] io_uring: Change res2 parameter type in io_uring_cmd_done" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x a07d2d7930c75e6bf88683b376d09ab1f3fed2aa # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121023-scaling-reusable-1c2c@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a07d2d7930c75e6bf88683b376d09ab1f3fed2aa Mon Sep 17 00:00:00 2001 From: Bernd Schubert <bschubert(a)ddn.com> Date: Tue, 3 Dec 2024 11:31:05 +0100 Subject: [PATCH] io_uring: Change res2 parameter type in io_uring_cmd_done Change the type of the res2 parameter in io_uring_cmd_done from ssize_t to u64. This aligns the parameter type with io_req_set_cqe32_extra, which expects u64 arguments. The change eliminates potential issues on 32-bit architectures where ssize_t might be 32-bit. Only user of passing res2 is drivers/nvme/host/ioctl.c and it actually passes u64. Fixes: ee692a21e9bf ("fs,io_uring: add infrastructure for uring-cmd") Cc: stable(a)vger.kernel.org Reviewed-by: Kanchan Joshi <joshi.k(a)samsung.com> Tested-by: Li Zetao <lizetao1(a)huawei.com> Reviewed-by: Li Zetao <lizetao1(a)huawei.com> Signed-off-by: Bernd Schubert <bschubert(a)ddn.com> Link: https://lore.kernel.org/r/20241203-io_uring_cmd_done-res2-as-u64-v2-1-5e59a… Signed-off-by: Jens Axboe <axboe(a)kernel.dk> diff --git a/include/linux/io_uring/cmd.h b/include/linux/io_uring/cmd.h index 578a3fdf5c71..0d5448c0b86c 100644 --- a/include/linux/io_uring/cmd.h +++ b/include/linux/io_uring/cmd.h @@ -43,7 +43,7 @@ int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw, * Note: the caller should never hard code @issue_flags and is only allowed * to pass the mask provided by the core io_uring code. */ -void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, ssize_t res2, +void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, u64 res2, unsigned issue_flags); void __io_uring_cmd_do_in_task(struct io_uring_cmd *ioucmd, @@ -67,7 +67,7 @@ static inline int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw, return -EOPNOTSUPP; } static inline void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, - ssize_t ret2, unsigned issue_flags) + u64 ret2, unsigned issue_flags) { } static inline void __io_uring_cmd_do_in_task(struct io_uring_cmd *ioucmd, diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c index d9fb2143f56f..af842e9b4eb9 100644 --- a/io_uring/uring_cmd.c +++ b/io_uring/uring_cmd.c @@ -151,7 +151,7 @@ static inline void io_req_set_cqe32_extra(struct io_kiocb *req, * Called by consumers of io_uring_cmd, if they originally returned * -EIOCBQUEUED upon receiving the command. */ -void io_uring_cmd_done(struct io_uring_cmd *ioucmd, ssize_t ret, ssize_t res2, +void io_uring_cmd_done(struct io_uring_cmd *ioucmd, ssize_t ret, u64 res2, unsigned issue_flags) { struct io_kiocb *req = cmd_to_io_kiocb(ioucmd);

6 months, 2 weeks

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FAILED: patch "[PATCH] io_uring: Change res2 parameter type in io_uring_cmd_done" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x a07d2d7930c75e6bf88683b376d09ab1f3fed2aa # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121022-craftwork-mummified-add6@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a07d2d7930c75e6bf88683b376d09ab1f3fed2aa Mon Sep 17 00:00:00 2001 From: Bernd Schubert <bschubert(a)ddn.com> Date: Tue, 3 Dec 2024 11:31:05 +0100 Subject: [PATCH] io_uring: Change res2 parameter type in io_uring_cmd_done Change the type of the res2 parameter in io_uring_cmd_done from ssize_t to u64. This aligns the parameter type with io_req_set_cqe32_extra, which expects u64 arguments. The change eliminates potential issues on 32-bit architectures where ssize_t might be 32-bit. Only user of passing res2 is drivers/nvme/host/ioctl.c and it actually passes u64. Fixes: ee692a21e9bf ("fs,io_uring: add infrastructure for uring-cmd") Cc: stable(a)vger.kernel.org Reviewed-by: Kanchan Joshi <joshi.k(a)samsung.com> Tested-by: Li Zetao <lizetao1(a)huawei.com> Reviewed-by: Li Zetao <lizetao1(a)huawei.com> Signed-off-by: Bernd Schubert <bschubert(a)ddn.com> Link: https://lore.kernel.org/r/20241203-io_uring_cmd_done-res2-as-u64-v2-1-5e59a… Signed-off-by: Jens Axboe <axboe(a)kernel.dk> diff --git a/include/linux/io_uring/cmd.h b/include/linux/io_uring/cmd.h index 578a3fdf5c71..0d5448c0b86c 100644 --- a/include/linux/io_uring/cmd.h +++ b/include/linux/io_uring/cmd.h @@ -43,7 +43,7 @@ int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw, * Note: the caller should never hard code @issue_flags and is only allowed * to pass the mask provided by the core io_uring code. */ -void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, ssize_t res2, +void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, u64 res2, unsigned issue_flags); void __io_uring_cmd_do_in_task(struct io_uring_cmd *ioucmd, @@ -67,7 +67,7 @@ static inline int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw, return -EOPNOTSUPP; } static inline void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, - ssize_t ret2, unsigned issue_flags) + u64 ret2, unsigned issue_flags) { } static inline void __io_uring_cmd_do_in_task(struct io_uring_cmd *ioucmd, diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c index d9fb2143f56f..af842e9b4eb9 100644 --- a/io_uring/uring_cmd.c +++ b/io_uring/uring_cmd.c @@ -151,7 +151,7 @@ static inline void io_req_set_cqe32_extra(struct io_kiocb *req, * Called by consumers of io_uring_cmd, if they originally returned * -EIOCBQUEUED upon receiving the command. */ -void io_uring_cmd_done(struct io_uring_cmd *ioucmd, ssize_t ret, ssize_t res2, +void io_uring_cmd_done(struct io_uring_cmd *ioucmd, ssize_t ret, u64 res2, unsigned issue_flags) { struct io_kiocb *req = cmd_to_io_kiocb(ioucmd);

6 months, 2 weeks

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FAILED: patch "[PATCH] scsi: ufs: core: Add missing post notify for power mode" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 7f45ed5f0cd5ccbbec79adc6c48a67d6a85fba56 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121041-ample-genetics-3d21@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7f45ed5f0cd5ccbbec79adc6c48a67d6a85fba56 Mon Sep 17 00:00:00 2001 From: Peter Wang <peter.wang(a)mediatek.com> Date: Fri, 22 Nov 2024 10:49:43 +0800 Subject: [PATCH] scsi: ufs: core: Add missing post notify for power mode change When the power mode change is successful but the power mode hasn't actually changed, the post notification was missed. Similar to the approach with hibernate/clock scale/hce enable, having pre/post notifications in the same function will make it easier to maintain. Additionally, supplement the description of power parameters for the pwr_change_notify callback. Fixes: 7eb584db73be ("ufs: refactor configuring power mode") Cc: stable(a)vger.kernel.org #6.11.x Signed-off-by: Peter Wang <peter.wang(a)mediatek.com> Link: https://lore.kernel.org/r/20241122024943.30589-1-peter.wang@mediatek.com Reviewed-by: Bart Van Assche <bvanassche(a)acm.org> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 25c8b3f57171..b7ec5797d5ba 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -4671,9 +4671,6 @@ static int ufshcd_change_power_mode(struct ufs_hba *hba, dev_err(hba->dev, "%s: power mode change failed %d\n", __func__, ret); } else { - ufshcd_vops_pwr_change_notify(hba, POST_CHANGE, NULL, - pwr_mode); - memcpy(&hba->pwr_info, pwr_mode, sizeof(struct ufs_pa_layer_attr)); } @@ -4702,6 +4699,10 @@ int ufshcd_config_pwr_mode(struct ufs_hba *hba, ret = ufshcd_change_power_mode(hba, &final_params); + if (!ret) + ufshcd_vops_pwr_change_notify(hba, POST_CHANGE, NULL, + &final_params); + return ret; } EXPORT_SYMBOL_GPL(ufshcd_config_pwr_mode); diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index d7aca9e61684..d650ae6b58d3 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -310,7 +310,9 @@ struct ufs_pwr_mode_info { * to allow variant specific Uni-Pro initialization. * @pwr_change_notify: called before and after a power mode change * is carried out to allow vendor spesific capabilities - * to be set. + * to be set. PRE_CHANGE can modify final_params based + * on desired_pwr_mode, but POST_CHANGE must not alter + * the final_params parameter * @setup_xfer_req: called before any transfer request is issued * to set some things * @setup_task_mgmt: called before any task management request is issued @@ -353,9 +355,9 @@ struct ufs_hba_variant_ops { int (*link_startup_notify)(struct ufs_hba *, enum ufs_notify_change_status); int (*pwr_change_notify)(struct ufs_hba *, - enum ufs_notify_change_status status, - struct ufs_pa_layer_attr *, - struct ufs_pa_layer_attr *); + enum ufs_notify_change_status status, + struct ufs_pa_layer_attr *desired_pwr_mode, + struct ufs_pa_layer_attr *final_params); void (*setup_xfer_req)(struct ufs_hba *hba, int tag, bool is_scsi_cmd); void (*setup_task_mgmt)(struct ufs_hba *, int, u8);

6 months, 2 weeks

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FAILED: patch "[PATCH] scsi: ufs: core: Add missing post notify for power mode" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 7f45ed5f0cd5ccbbec79adc6c48a67d6a85fba56 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121040-prowler-plaything-715c@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7f45ed5f0cd5ccbbec79adc6c48a67d6a85fba56 Mon Sep 17 00:00:00 2001 From: Peter Wang <peter.wang(a)mediatek.com> Date: Fri, 22 Nov 2024 10:49:43 +0800 Subject: [PATCH] scsi: ufs: core: Add missing post notify for power mode change When the power mode change is successful but the power mode hasn't actually changed, the post notification was missed. Similar to the approach with hibernate/clock scale/hce enable, having pre/post notifications in the same function will make it easier to maintain. Additionally, supplement the description of power parameters for the pwr_change_notify callback. Fixes: 7eb584db73be ("ufs: refactor configuring power mode") Cc: stable(a)vger.kernel.org #6.11.x Signed-off-by: Peter Wang <peter.wang(a)mediatek.com> Link: https://lore.kernel.org/r/20241122024943.30589-1-peter.wang@mediatek.com Reviewed-by: Bart Van Assche <bvanassche(a)acm.org> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 25c8b3f57171..b7ec5797d5ba 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -4671,9 +4671,6 @@ static int ufshcd_change_power_mode(struct ufs_hba *hba, dev_err(hba->dev, "%s: power mode change failed %d\n", __func__, ret); } else { - ufshcd_vops_pwr_change_notify(hba, POST_CHANGE, NULL, - pwr_mode); - memcpy(&hba->pwr_info, pwr_mode, sizeof(struct ufs_pa_layer_attr)); } @@ -4702,6 +4699,10 @@ int ufshcd_config_pwr_mode(struct ufs_hba *hba, ret = ufshcd_change_power_mode(hba, &final_params); + if (!ret) + ufshcd_vops_pwr_change_notify(hba, POST_CHANGE, NULL, + &final_params); + return ret; } EXPORT_SYMBOL_GPL(ufshcd_config_pwr_mode); diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index d7aca9e61684..d650ae6b58d3 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -310,7 +310,9 @@ struct ufs_pwr_mode_info { * to allow variant specific Uni-Pro initialization. * @pwr_change_notify: called before and after a power mode change * is carried out to allow vendor spesific capabilities - * to be set. + * to be set. PRE_CHANGE can modify final_params based + * on desired_pwr_mode, but POST_CHANGE must not alter + * the final_params parameter * @setup_xfer_req: called before any transfer request is issued * to set some things * @setup_task_mgmt: called before any task management request is issued @@ -353,9 +355,9 @@ struct ufs_hba_variant_ops { int (*link_startup_notify)(struct ufs_hba *, enum ufs_notify_change_status); int (*pwr_change_notify)(struct ufs_hba *, - enum ufs_notify_change_status status, - struct ufs_pa_layer_attr *, - struct ufs_pa_layer_attr *); + enum ufs_notify_change_status status, + struct ufs_pa_layer_attr *desired_pwr_mode, + struct ufs_pa_layer_attr *final_params); void (*setup_xfer_req)(struct ufs_hba *hba, int tag, bool is_scsi_cmd); void (*setup_task_mgmt)(struct ufs_hba *, int, u8);

6 months, 2 weeks

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FAILED: patch "[PATCH] scsi: ufs: core: Add missing post notify for power mode" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 7f45ed5f0cd5ccbbec79adc6c48a67d6a85fba56 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121039-elude-uplifted-9071@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7f45ed5f0cd5ccbbec79adc6c48a67d6a85fba56 Mon Sep 17 00:00:00 2001 From: Peter Wang <peter.wang(a)mediatek.com> Date: Fri, 22 Nov 2024 10:49:43 +0800 Subject: [PATCH] scsi: ufs: core: Add missing post notify for power mode change When the power mode change is successful but the power mode hasn't actually changed, the post notification was missed. Similar to the approach with hibernate/clock scale/hce enable, having pre/post notifications in the same function will make it easier to maintain. Additionally, supplement the description of power parameters for the pwr_change_notify callback. Fixes: 7eb584db73be ("ufs: refactor configuring power mode") Cc: stable(a)vger.kernel.org #6.11.x Signed-off-by: Peter Wang <peter.wang(a)mediatek.com> Link: https://lore.kernel.org/r/20241122024943.30589-1-peter.wang@mediatek.com Reviewed-by: Bart Van Assche <bvanassche(a)acm.org> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 25c8b3f57171..b7ec5797d5ba 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -4671,9 +4671,6 @@ static int ufshcd_change_power_mode(struct ufs_hba *hba, dev_err(hba->dev, "%s: power mode change failed %d\n", __func__, ret); } else { - ufshcd_vops_pwr_change_notify(hba, POST_CHANGE, NULL, - pwr_mode); - memcpy(&hba->pwr_info, pwr_mode, sizeof(struct ufs_pa_layer_attr)); } @@ -4702,6 +4699,10 @@ int ufshcd_config_pwr_mode(struct ufs_hba *hba, ret = ufshcd_change_power_mode(hba, &final_params); + if (!ret) + ufshcd_vops_pwr_change_notify(hba, POST_CHANGE, NULL, + &final_params); + return ret; } EXPORT_SYMBOL_GPL(ufshcd_config_pwr_mode); diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index d7aca9e61684..d650ae6b58d3 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -310,7 +310,9 @@ struct ufs_pwr_mode_info { * to allow variant specific Uni-Pro initialization. * @pwr_change_notify: called before and after a power mode change * is carried out to allow vendor spesific capabilities - * to be set. + * to be set. PRE_CHANGE can modify final_params based + * on desired_pwr_mode, but POST_CHANGE must not alter + * the final_params parameter * @setup_xfer_req: called before any transfer request is issued * to set some things * @setup_task_mgmt: called before any task management request is issued @@ -353,9 +355,9 @@ struct ufs_hba_variant_ops { int (*link_startup_notify)(struct ufs_hba *, enum ufs_notify_change_status); int (*pwr_change_notify)(struct ufs_hba *, - enum ufs_notify_change_status status, - struct ufs_pa_layer_attr *, - struct ufs_pa_layer_attr *); + enum ufs_notify_change_status status, + struct ufs_pa_layer_attr *desired_pwr_mode, + struct ufs_pa_layer_attr *final_params); void (*setup_xfer_req)(struct ufs_hba *hba, int tag, bool is_scsi_cmd); void (*setup_task_mgmt)(struct ufs_hba *, int, u8);

6 months, 2 weeks

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FAILED: patch "[PATCH] scsi: ufs: pltfrm: Disable runtime PM during removal of glue" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x d3326e6a3f9bf1e075be2201fb704c2fdf19e2b7 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121023-satisfy-psychic-5437@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From d3326e6a3f9bf1e075be2201fb704c2fdf19e2b7 Mon Sep 17 00:00:00 2001 From: Manivannan Sadhasivam <mani(a)kernel.org> Date: Mon, 11 Nov 2024 23:18:32 +0530 Subject: [PATCH] scsi: ufs: pltfrm: Disable runtime PM during removal of glue drivers When the UFSHCD platform glue drivers are removed, runtime PM should be disabled using pm_runtime_disable() to balance the enablement done in ufshcd_pltfrm_init(). This is also reported by PM core when the glue driver is removed and inserted again: ufshcd-qcom 1d84000.ufshc: Unbalanced pm_runtime_enable! So disable runtime PM using a new helper API ufshcd_pltfrm_remove(), that also takes care of removing ufshcd. This helper should be called during the remove() stage of glue drivers. Cc: stable(a)vger.kernel.org # 3.12 Fixes: 62694735ca95 ("[SCSI] ufs: Add runtime PM support for UFS host controller driver") Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Link: https://lore.kernel.org/r/20241111-ufs_bug_fix-v1-3-45ad8b62f02e@linaro.org Reviewed-by: Peter Wang <peter.wang(a)mediatek.com> Reviewed-by: Bean Huo <beanhuo(a)micron.com> Reviewed-by: Bart Van Assche <bvanassche(a)acm.org> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/ufs/host/cdns-pltfrm.c b/drivers/ufs/host/cdns-pltfrm.c index 66811d8d1929..b31aa8411151 100644 --- a/drivers/ufs/host/cdns-pltfrm.c +++ b/drivers/ufs/host/cdns-pltfrm.c @@ -307,9 +307,7 @@ static int cdns_ufs_pltfrm_probe(struct platform_device *pdev) */ static void cdns_ufs_pltfrm_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops cdns_ufs_dev_pm_ops = { diff --git a/drivers/ufs/host/tc-dwc-g210-pltfrm.c b/drivers/ufs/host/tc-dwc-g210-pltfrm.c index a3877592604d..113e0ef7b2cf 100644 --- a/drivers/ufs/host/tc-dwc-g210-pltfrm.c +++ b/drivers/ufs/host/tc-dwc-g210-pltfrm.c @@ -76,10 +76,8 @@ static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev) */ static void tc_dwc_g210_pltfm_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = { diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 91827b3e582b..b20f6526777a 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -1993,7 +1993,7 @@ static void exynos_ufs_remove(struct platform_device *pdev) struct exynos_ufs *ufs = ufshcd_get_variant(hba); pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); phy_power_off(ufs->phy); phy_exit(ufs->phy); diff --git a/drivers/ufs/host/ufs-hisi.c b/drivers/ufs/host/ufs-hisi.c index 5ee73ff05251..501609521b26 100644 --- a/drivers/ufs/host/ufs-hisi.c +++ b/drivers/ufs/host/ufs-hisi.c @@ -576,9 +576,7 @@ static int ufs_hisi_probe(struct platform_device *pdev) static void ufs_hisi_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops ufs_hisi_pm_ops = { diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 06ab1e5e8b6f..b444146419de 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1879,10 +1879,8 @@ static int ufs_mtk_probe(struct platform_device *pdev) */ static void ufs_mtk_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 5220ec78021d..3762337d7576 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1864,7 +1864,7 @@ static void ufs_qcom_remove(struct platform_device *pdev) struct ufs_qcom_host *host = ufshcd_get_variant(hba); pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); if (host->esi_enabled) platform_device_msi_free_irqs_all(hba->dev); } diff --git a/drivers/ufs/host/ufs-renesas.c b/drivers/ufs/host/ufs-renesas.c index 3ff97112e1f6..21a64b34397d 100644 --- a/drivers/ufs/host/ufs-renesas.c +++ b/drivers/ufs/host/ufs-renesas.c @@ -397,9 +397,7 @@ static int ufs_renesas_probe(struct platform_device *pdev) static void ufs_renesas_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static struct platform_driver ufs_renesas_platform = { diff --git a/drivers/ufs/host/ufs-sprd.c b/drivers/ufs/host/ufs-sprd.c index d8b165908809..e455890cf7d4 100644 --- a/drivers/ufs/host/ufs-sprd.c +++ b/drivers/ufs/host/ufs-sprd.c @@ -427,10 +427,8 @@ static int ufs_sprd_probe(struct platform_device *pdev) static void ufs_sprd_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops ufs_sprd_pm_ops = { diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index 1f4f30d6cb42..bad5b1303eb6 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -524,6 +524,19 @@ int ufshcd_pltfrm_init(struct platform_device *pdev, } EXPORT_SYMBOL_GPL(ufshcd_pltfrm_init); +/** + * ufshcd_pltfrm_remove - Remove ufshcd platform + * @pdev: pointer to Platform device handle + */ +void ufshcd_pltfrm_remove(struct platform_device *pdev) +{ + struct ufs_hba *hba = platform_get_drvdata(pdev); + + ufshcd_remove(hba); + pm_runtime_disable(&pdev->dev); +} +EXPORT_SYMBOL_GPL(ufshcd_pltfrm_remove); + MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy(a)samsung.com>"); MODULE_AUTHOR("Vinayak Holikatti <h.vinayak(a)samsung.com>"); MODULE_DESCRIPTION("UFS host controller Platform bus based glue driver"); diff --git a/drivers/ufs/host/ufshcd-pltfrm.h b/drivers/ufs/host/ufshcd-pltfrm.h index df387be5216b..3017f8e8f93c 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.h +++ b/drivers/ufs/host/ufshcd-pltfrm.h @@ -31,6 +31,7 @@ int ufshcd_negotiate_pwr_params(const struct ufs_host_params *host_params, void ufshcd_init_host_params(struct ufs_host_params *host_params); int ufshcd_pltfrm_init(struct platform_device *pdev, const struct ufs_hba_variant_ops *vops); +void ufshcd_pltfrm_remove(struct platform_device *pdev); int ufshcd_populate_vreg(struct device *dev, const char *name, struct ufs_vreg **out_vreg, bool skip_current);

6 months, 2 weeks

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FAILED: patch "[PATCH] scsi: ufs: pltfrm: Disable runtime PM during removal of glue" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x d3326e6a3f9bf1e075be2201fb704c2fdf19e2b7 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024121022-tray-goes-9a6e@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From d3326e6a3f9bf1e075be2201fb704c2fdf19e2b7 Mon Sep 17 00:00:00 2001 From: Manivannan Sadhasivam <mani(a)kernel.org> Date: Mon, 11 Nov 2024 23:18:32 +0530 Subject: [PATCH] scsi: ufs: pltfrm: Disable runtime PM during removal of glue drivers When the UFSHCD platform glue drivers are removed, runtime PM should be disabled using pm_runtime_disable() to balance the enablement done in ufshcd_pltfrm_init(). This is also reported by PM core when the glue driver is removed and inserted again: ufshcd-qcom 1d84000.ufshc: Unbalanced pm_runtime_enable! So disable runtime PM using a new helper API ufshcd_pltfrm_remove(), that also takes care of removing ufshcd. This helper should be called during the remove() stage of glue drivers. Cc: stable(a)vger.kernel.org # 3.12 Fixes: 62694735ca95 ("[SCSI] ufs: Add runtime PM support for UFS host controller driver") Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Link: https://lore.kernel.org/r/20241111-ufs_bug_fix-v1-3-45ad8b62f02e@linaro.org Reviewed-by: Peter Wang <peter.wang(a)mediatek.com> Reviewed-by: Bean Huo <beanhuo(a)micron.com> Reviewed-by: Bart Van Assche <bvanassche(a)acm.org> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/ufs/host/cdns-pltfrm.c b/drivers/ufs/host/cdns-pltfrm.c index 66811d8d1929..b31aa8411151 100644 --- a/drivers/ufs/host/cdns-pltfrm.c +++ b/drivers/ufs/host/cdns-pltfrm.c @@ -307,9 +307,7 @@ static int cdns_ufs_pltfrm_probe(struct platform_device *pdev) */ static void cdns_ufs_pltfrm_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops cdns_ufs_dev_pm_ops = { diff --git a/drivers/ufs/host/tc-dwc-g210-pltfrm.c b/drivers/ufs/host/tc-dwc-g210-pltfrm.c index a3877592604d..113e0ef7b2cf 100644 --- a/drivers/ufs/host/tc-dwc-g210-pltfrm.c +++ b/drivers/ufs/host/tc-dwc-g210-pltfrm.c @@ -76,10 +76,8 @@ static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev) */ static void tc_dwc_g210_pltfm_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = { diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 91827b3e582b..b20f6526777a 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -1993,7 +1993,7 @@ static void exynos_ufs_remove(struct platform_device *pdev) struct exynos_ufs *ufs = ufshcd_get_variant(hba); pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); phy_power_off(ufs->phy); phy_exit(ufs->phy); diff --git a/drivers/ufs/host/ufs-hisi.c b/drivers/ufs/host/ufs-hisi.c index 5ee73ff05251..501609521b26 100644 --- a/drivers/ufs/host/ufs-hisi.c +++ b/drivers/ufs/host/ufs-hisi.c @@ -576,9 +576,7 @@ static int ufs_hisi_probe(struct platform_device *pdev) static void ufs_hisi_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops ufs_hisi_pm_ops = { diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 06ab1e5e8b6f..b444146419de 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1879,10 +1879,8 @@ static int ufs_mtk_probe(struct platform_device *pdev) */ static void ufs_mtk_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 5220ec78021d..3762337d7576 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1864,7 +1864,7 @@ static void ufs_qcom_remove(struct platform_device *pdev) struct ufs_qcom_host *host = ufshcd_get_variant(hba); pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); if (host->esi_enabled) platform_device_msi_free_irqs_all(hba->dev); } diff --git a/drivers/ufs/host/ufs-renesas.c b/drivers/ufs/host/ufs-renesas.c index 3ff97112e1f6..21a64b34397d 100644 --- a/drivers/ufs/host/ufs-renesas.c +++ b/drivers/ufs/host/ufs-renesas.c @@ -397,9 +397,7 @@ static int ufs_renesas_probe(struct platform_device *pdev) static void ufs_renesas_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static struct platform_driver ufs_renesas_platform = { diff --git a/drivers/ufs/host/ufs-sprd.c b/drivers/ufs/host/ufs-sprd.c index d8b165908809..e455890cf7d4 100644 --- a/drivers/ufs/host/ufs-sprd.c +++ b/drivers/ufs/host/ufs-sprd.c @@ -427,10 +427,8 @@ static int ufs_sprd_probe(struct platform_device *pdev) static void ufs_sprd_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops ufs_sprd_pm_ops = { diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index 1f4f30d6cb42..bad5b1303eb6 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -524,6 +524,19 @@ int ufshcd_pltfrm_init(struct platform_device *pdev, } EXPORT_SYMBOL_GPL(ufshcd_pltfrm_init); +/** + * ufshcd_pltfrm_remove - Remove ufshcd platform + * @pdev: pointer to Platform device handle + */ +void ufshcd_pltfrm_remove(struct platform_device *pdev) +{ + struct ufs_hba *hba = platform_get_drvdata(pdev); + + ufshcd_remove(hba); + pm_runtime_disable(&pdev->dev); +} +EXPORT_SYMBOL_GPL(ufshcd_pltfrm_remove); + MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy(a)samsung.com>"); MODULE_AUTHOR("Vinayak Holikatti <h.vinayak(a)samsung.com>"); MODULE_DESCRIPTION("UFS host controller Platform bus based glue driver"); diff --git a/drivers/ufs/host/ufshcd-pltfrm.h b/drivers/ufs/host/ufshcd-pltfrm.h index df387be5216b..3017f8e8f93c 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.h +++ b/drivers/ufs/host/ufshcd-pltfrm.h @@ -31,6 +31,7 @@ int ufshcd_negotiate_pwr_params(const struct ufs_host_params *host_params, void ufshcd_init_host_params(struct ufs_host_params *host_params); int ufshcd_pltfrm_init(struct platform_device *pdev, const struct ufs_hba_variant_ops *vops); +void ufshcd_pltfrm_remove(struct platform_device *pdev); int ufshcd_populate_vreg(struct device *dev, const char *name, struct ufs_vreg **out_vreg, bool skip_current);

6 months, 2 weeks

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